diff --git a/smartgears/dm_pool_manager/defaults/main.yml b/smartgears/dm_pool_manager/defaults/main.yml
index 3b50c268..e52445ae 100644
--- a/smartgears/dm_pool_manager/defaults/main.yml
+++ b/smartgears/dm_pool_manager/defaults/main.yml
@@ -17,5 +17,7 @@ dm_pool_manager_pkgs:
 dm_pool_svn_url: https://svn.d4science.research-infrastructures.eu:443/gcube/trunk/data-analysis
 svn_user: svn.d4science
 svn_pass: "{{ vault_svn_pass }}"
+prod_instance: False
+proto_instance: False
 
 
diff --git a/smartgears/dm_pool_manager/templates/web.xml.j2 b/smartgears/dm_pool_manager/templates/web.xml.j2
index 5466f401..8e653329 100644
--- a/smartgears/dm_pool_manager/templates/web.xml.j2
+++ b/smartgears/dm_pool_manager/templates/web.xml.j2
@@ -7,6 +7,9 @@
 	
 	<context-param>
 		<param-name>Environment</param-name>
+{% if proto_instance %}
+                <param-value>Proto</param-value>
+{% endif %}
 {% if prod_instance %}
 		<param-value>Prod</param-value>
 {% else %}